Description
Title:
YVFE3-250M-6 Variable Frequency Low Voltage AC Motor
Brief Introduction
Robust Phase-Loss Protection System
The YVFE3-250M-6 1000 RPM AC motor integrates comprehensive safeguards against single-phase operation. Precise fuse selection follows the formula: Rated Current = K × Motor Rated Current (K=1.5-2.5 for high thermal-capacity fuses; K=4-6 for standard types). This YVFE3-250M-6 AC motor employs corrosion-resistant contactors and vibration-proof connections to eliminate phase failure from loose terminals or environmental damage.
Critical Maintenance Protocols
Regular inspection prevents contact wear and thermal relay failures. Copper-aluminum transitions joints minimize oxidation at terminals, while spring washers ensure stable wiring. For delta-connected windings, the 1000 RPM AC motor’s monitoring system detects abnormal current patterns (e.g., 1.5x line current increase during single-phase operation under load). Differential thermal relays provide backup protection against overload-induced phase loss.
Preventive Design Philosophy
Strict manufacturing controls prevent internal winding defects. Combined with environmental hardening (sealed enclosures, anti-corrosion coatings) and certified component selection, this approach eliminates single-phase operation risks.
Main Technical Parameters
| Frame: | H55 |
| Power Scope: | 0.37KW~315KW |
| Voltage: | 380V, 660V |
| Frequency: | 50~60Hz |
| Number of Poles: | 2P |
| Speed: | 2970rpm |
| Cooling Method | IC416 |
| Protection Grade | IP55 |
| Insulation Class | F(155℃) |
| Duty: | S1 |
| Mounting Type | B35 |
| Standard: | IEC |
| Efficiency Grade: | IE3 |
Why choose Simo Brand YVFE3 series Motor?
YVFE3 Variable Frequency LV Motor adopts an all-copper motor, so it not only has high operating efficiency and strong power but also can achieve efficient heat dissipation. The fan cooling system can keep the temperature of the motor from being too high when it runs for a long time. It can maintain stable output at both high and low frequencies. The high-hardness shaft is finely manufactured, so it is more durable. In order to achieve excellent voltage shock resistance, it has relatively high requirements on the selection of materials and selection of magnet wires, so the performance of insulating materials is better than that of ordinary motors.
Production Details
Technical Parameters
| Type | Rated Power
kW |
Rated Current
A |
Speed
r/min |
Efficiency
% |
Power Factor
Cosφ |
Locked Torque | Locked
Current |
Max. Torque | Rated torque
N•m |
No-load Noise
dB(A) |
Weight
Kg |
| Rated
Torque |
Rated
Current |
Rated Torque | |||||||||
| Asynchronous Speed 1000(r/min) | |||||||||||
| YVFE3 250M-6 | 37 | 71.7 | 990 | 93.3 | 0.84 | 2.0 | 7.1 | 2.1 | 355.3 | 91 | 370 |
Frame
- Compact and robust iron casting frame
- Universal installation dimensions
- Customizable
Stator
- 99.9% pure copper winding ensures the output power and efficiency
- Excellent insulation system with 5 more processing flows
- All the windings are fitted in by handwork to ensure all slots are full and avoid any winding flaw.
Rotor
- Aluminum casting rotor with high quality silicon steel rotor core to assure induction efficiency
- Pprecisely machined shafts with good capacity of strength
Testing
- All motors must pass the piece testing before painting and packaging
- Type tests will be regularly performed for each series
Package and delivery
- All motors will be packaged well before delivery
- Plastic cover inside, vacuum tin foil outer and then solid wood box
Applications
The YVFE3 Variable Frequency LV Motor can be widely used in textile, metallurgy, chemical, machine tools and other industries because it can realize constant torque, constant power speed and speed control.
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